Forum Discussion

pp's avatar
pp
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

fft_ip核仿真，接口时序问题

我使用的软件版本是2018.1 pro专业版 在对FFT IP核进行仿真时，对其时序产生疑问，请各位帮我看看，我输入的信号时序，哪里给错了，为何输出的source_error会给2b'11的值 IP核的配置如下 请求帮忙，卡了好久了，实在不知道哪里出了问题
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


I notice that from your screenshot, when the sink_sop & sink_valid = 1, the sink_real = 0x0. Just to check with you if your first input data is 0x0 or 0x1fd511fa?


Please let me know if there is any concern. Thank you.



Best regards,

Chee Pin



pp's avatar
pp
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

您好：

sink_sop & sink_valid = 1，sink_real = 0x0是对的，我是用Matlab生成了一段正弦波，然后直接导出数据，用testbench写入的